Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 29-11-2020 and time 11:17:59 (UTC) in region 9 km NE Vernio (PO)

A magnitude ML 1.6 earthquake occured in region: 9 km NE Vernio (PO), on

  • 29-11-2020 11:17:59 (UTC)
  • 29-11-2020 12:17:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0960, 11.2500 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Vernio PO 9 6060 6060
Castiglione dei Pepoli BO 9 5648 11708
Barberino di Mugello FI 11 10836 22544
Firenzuola FI 11 4726 27270
Cantagallo PO 14 3105 30375
San Benedetto Val di Sambro BO 14 4315 34690
Monghidoro BO 15 3749 38439
Camugnano BO 15 1885 40324
Scarperia e San Piero FI 16 12217 52541
Vaiano PO 17 9895 62436
Castel di Casio BO 19 3448 65884
Borgo San Lorenzo FI 19 18211 84095
Grizzana Morandi BO 20 3916 88011

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Prato (191150 inhabitants)
32 Km NE of Pistoia (90315 inhabitants)
36 Km N of Firenze (382808 inhabitants)
38 Km N of Scandicci (50609 inhabitants)
45 Km S of Bologna (386663 inhabitants)
47 Km SW of Imola (69797 inhabitants)
55 Km W of Faenza (58541 inhabitants)
65 Km W of Forlì (117913 inhabitants)
66 Km E of Lucca (89046 inhabitants)
66 Km SE of Modena (184973 inhabitants)
79 Km W of Cesena (96758 inhabitants)
80 Km NE of Pisa (89158 inhabitants)
82 Km SE of Carpi (70699 inhabitants)
83 Km SE of Reggio nell'Emilia (171345 inhabitants)
84 Km W of Ravenna (159116 inhabitants)
84 Km E of Viareggio (62467 inhabitants)
86 Km NW of Arezzo (99543 inhabitants)
87 Km N of Siena (53903 inhabitants)
88 Km SW of Ferrara (133155 inhabitants)
89 Km E of Massa (69479 inhabitants)
92 Km E of Carrara (63133 inhabitants)
97 Km NE of Livorno (159219 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.6 2020-11-29
11:17:59		 44.096 11.2497 10 2021-02-26
14:56:16		 Bollettino Sismico Italiano INGV 86425661
Reviewed
Rev100 		ML 1.8 2020-11-29
11:17:59		 44.0957 11.2477 10 2020-11-29
11:25:26		 Sala Sismica INGV-Roma 85087631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-29 11:17:59 ± 0.07
Latitude 44.0960 ± 0.0045
Longitude 11.2497 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86425661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 471
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.39210
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 85087631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-29 11:25:26

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86425661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 16:50:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2020-11-29T11:18:11.84 0.3 undecidable manual S 144 35.3424 50 -0.37 68
IV.CRMI.HHZ. 2020-11-29T11:18:08.20 0.1 undecidable manual P 213 39.7269 50 0.5 86
IV.BRIS.HNZ. 2020-11-29T11:18:08.32 0.6 undecidable manual P 71 43.5231 50 0.02 47
GU.POPM.HHZ. 2020-11-29T11:18:07.79 0.3 undecidable manual P 262 39.7269 50 0.09 71
IV.MPPT.EHZ. 2020-11-29T11:18:07.43 0.3 undecidable manual S 220 19.9689 115 -0.19 72
IV.RINC.HHZ. 2020-11-29T11:18:07.20 0.6 undecidable manual P 129 36.8298 50 -0.06 48
IV.ZCCA.HNZ. 2020-11-29T11:18:06.56 1.0 undecidable manual P 323 35.6421 50 -0.52 22
IV.RUFI.EHZ. 2020-11-29T11:18:06.70 0.1 undecidable manual P 144 35.3424 50 -0.34 92
IV.MTRZ.HHZ. 2020-11-29T11:18:06.33 0.3 undecidable manual P 30 27.75 109 0.49 67
IV.VISG.HHZ. 2020-11-29T11:18:06.86 0.3 undecidable manual S 55 17.9709 118 -0.15 73
IV.MOCL.EHZ. 2020-11-29T11:18:05.18 0.3 undecidable manual S 209 11.4774 129 0.05 76
IV.FNVD.HHZ. 2020-11-29T11:18:05.26 0.3 undecidable manual S 308 12.876 126 -0.24 72
IV.VISG.HHZ. 2020-11-29T11:18:04.01 0.1 undecidable manual P 55 17.9709 118 -0.02 100
IV.MPPT.EHZ. 2020-11-29T11:18:04.34 0.1 undecidable manual P 220 19.9689 115 -0.04 99
IV.SEI.HHZ. 2020-11-29T11:18:04.89 0.3 undecidable manual S 118 9.879 134 0.19 74
IV.MOCL.EHZ. 2020-11-29T11:18:03.07 0.1 positive manual P 209 11.4774 129 0.12 99
IV.FNVD.HHZ. 2020-11-29T11:18:03.10 0.1 negative manual P 308 12.876 126 -0.06 100
IV.SEI.HHZ. 2020-11-29T11:18:02.82 0.1 positive manual P 118 9.879 134 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:1.9 0.0010139586000000001 0.2176 AML other m 2020-11-29T11:18:05.01
IV.MOCL.EHN. ML:2.0 0.0013593102500000002 0.2816 AML other m 2020-11-29T11:18:05.29
IV.MOCL.EHE. ML:1.6 0.0005219566500000001 0.3392 AML other m 2020-11-29T11:18:05.32
IV.FNVD.HHN. ML:1.9 0.0008730774999999999 0.0576 AML other m 2020-11-29T11:18:05.33
IV.SEI.HHE. ML:1.6 0.0005954686 0.32 AML other m 2020-11-29T11:18:05.45
IV.FNVD.HHE. ML:1.6 0.00043190595 0.3008 AML other m 2020-11-29T11:18:05.50
IV.VISG.HHE. ML:1.4 0.00018845075 0.2816 AML other m 2020-11-29T11:18:07.03
IV.VISG.HHN. ML:1.4 0.0002354977 0.3008 AML other m 2020-11-29T11:18:07.29
IV.MPPT.EHE. ML:1.3 0.00016414345 0.2624 AML other m 2020-11-29T11:18:07.69
IV.MPPT.EHN. ML:1.6 0.000295 0.2 AML other m 2020-11-29T11:18:07.81
IV.RUFI.EHN. ML:0.7 0.000020715229999999996 0.384 AML other m 2020-11-29T11:18:11.92
IV.RUFI.EHE. ML:1.0 0.000039689456000000006 0.4032 AML other m 2020-11-29T11:18:11.94
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download